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https://issues.apache.org/jira/browse/DOXIA-543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Osipov updated DOXIA-543:
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Fix Version/s: 1.8
> maven-doxia-markdown fails in parallel builds
> ---------------------------------------------
>
> Key: DOXIA-543
> URL: https://issues.apache.org/jira/browse/DOXIA-543
> Project: Maven Doxia
> Issue Type: Bug
> Components: Module - Markdown
> Affects Versions: 1.7
> Reporter: Daniel Wegener
> Assignee: Michael Osipov
> Fix For: 1.8
>
> Original Estimate: 10m
> Remaining Estimate: 10m
>
> The PegDownProcessor used at
> https://github.com/apache/maven-doxia/blob/doxia-1.7/doxia-modules/doxia-module-markdown/src/main/java/org/apache/maven/doxia/module/markdown/MarkdownParser.java#L72
> is shared between multiple concurrent executions of the maven-site-plugin.
> This leads to random errors (NPEs, ClassCastException) because the parser
> state machine is reused by multiple threads.
> It seem not to be enough to make the field non-static since the whole
> MarkdownParser instance seem to be shared between different threads.
> The PegDown Javadoc explicitly states that a PegDownProcessor is not
> thread-safe:
> https://github.com/sirthias/pegdown/blob/master/src/main/java/org/pegdown/PegDownProcessor.java
> Possible solutions:
> - Put the PegDownProcessor into a threadLocal.
> - Instanciate the PegDownProcessor in the toHtml method.
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